Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 30 Oct 2026. What's built · Install 0.1.0

Failures · rule

`failure.duplicate_context_field`

Failure field is given twice.

Area 4, Failures; not declinable; the next step is usually the agent's.

example

type Lookup = Text {}type Missing = Failure {    kind: FailureKind.not_found    internal: {        lookup: Lookup    }}action find(lookup: Lookup) fails Missing -> Lookup {    reject Missing {        lookup: lookup        lookup: lookup    }}

text

error: `lookup` is given twice --> main.jadpo:13:9   |12 |         lookup: lookup   |         ------ first given here13 |         lookup: lookup   |         ^^^^^^ given again  reason: Each field of `Missing` is given once, so the log and the client never have to guess which value counts.  next: Remove one `lookup` (agent)  rule: failure.duplicate_context_field  help: https://jadpo.dev/docs/errors/failure.duplicate_context_fieldcheck failed: 1 error, 1 file

Markdown for agents: /docs/errors/failure.duplicate_context_field.md.Built from Jadpo main at a707efb.